Sorry, I did not know the word in English. I believe I am talking about the radiator, the device in front of the car where coolant is cooling down. Original question was that is it difficult to change. I see there are two metal pipes above it, perhaps oil pipes from Auto box. Do I have to remove them? How about Air Con pipes, do I have to remove them?

If you look in the maintenance section there is a "how to" under the heading V6 replace aircon condenser the first part of this deals with removing the radiator and should give you the information you want-obviously you can ignore the second part dealing with removing the condenser as you won't need to do that part.

The metal pipes can simply be disconnected and tied back to the coolant bottle. As you lift the radiator etc out, undo the two screws attaching the condenser and leave it in the location. Once out, you can undo the four screws attaching the oil cooler to the radiator... Keep it upright and you won't lose a significant amount of transmission fluid